diff options
| -rw-r--r-- | drivers/mmc/host/sdhci-of-core.c | 4 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 14 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 2 |
3 files changed, 18 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci-of-core.c b/drivers/mmc/host/sdhci-of-core.c index a2e9820cd42f..dd1bdd168e66 100644 --- a/drivers/mmc/host/sdhci-of-core.c +++ b/drivers/mmc/host/sdhci-of-core.c @@ -154,6 +154,10 @@ static int __devinit sdhci_of_probe(struct of_device *ofdev, host->ops = &sdhci_of_data->ops; } + if (of_get_property(np, "sdhci,auto-cmd12", NULL)) + host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12; + + if (of_get_property(np, "sdhci,1-bit-only", NULL)) host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA; diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index c86c14af479f..785512133b50 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -818,8 +818,12 @@ static void sdhci_set_transfer_mode(struct sdhci_host *host, WARN_ON(!host->data); mode = SDHCI_TRNS_BLK_CNT_EN; - if (data->blocks > 1) - mode |= SDHCI_TRNS_MULTI; + if (data->blocks > 1) { + if (host->quirks & SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12) + mode |= SDHCI_TRNS_MULTI | SDHCI_TRNS_ACMD12; + else + mode |= SDHCI_TRNS_MULTI; + } if (data->flags & MMC_DATA_READ) mode |= SDHCI_TRNS_READ; if (host->flags & SDHCI_REQ_USE_DMA) @@ -1109,6 +1113,12 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq) #ifndef SDHCI_USE_LEDS_CLASS sdhci_activate_led(host); #endif + if (host->quirks & SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12) { + if (mrq->stop) { + mrq->data->stop = NULL; + mrq->stop = NULL; + } + } host->mrq = mrq; diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index ff070a309f8d..036cfae76368 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -243,6 +243,8 @@ struct sdhci_host { #define SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC (1<<26) /* Controller is missing device caps. Use caps provided by host */ #define SDHCI_QUIRK_MISSING_CAPS (1<<27) +/* Controller uses Auto CMD12 command to stop the transfer */ +#define SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 (1<<28) int irq; /* Device IRQ */ void __iomem * ioaddr; /* Mapped address */ |